frameborder(HTML attribute)

Syntax

frameborder="

{ 0 | 1 }

"

Description

Depending on the design and
colors used on the page that contains the iframe, it
may not be immediately obvious that the content in the
iframe is from another source (although that may
actually be the desired outcome!). In order to make it absolutely clear,
you may want to use the frameborder attribute which
will cause the browser to render a visual delineation (most likely as a 3D
or bevelled border, but it very much depends on the style of the browser
that you use). A better solution, however, is to use CSS to apply the
border style (it will give you more choice that ‘gray, dull and ugly’,
too!).

Example

The header frame is given a frame
border, the main window has no border: